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Mirror von https://github.com/PaperMC/Velocity.git synchronisiert 2024-12-24 15:20:35 +01:00

Merge pull request #307 from mikroskeem/feature/prevent-proxy-connections

Add prevent-proxy-connections option
Dieser Commit ist enthalten in:
Andrew Steinborn 2020-05-08 14:57:20 -04:00 committet von GitHub
Commit 2418cc271a
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GPG-Schlüssel-ID: 4AEE18F83AFDEB23
3 geänderte Dateien mit 28 neuen und 3 gelöschten Zeilen

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@ -62,6 +62,15 @@ public interface ProxyConfig {
*/
boolean isOnlineMode();
/**
* If client's ISP/AS sent from this proxy is different from the one from Mojang's
* authentication server, the player is kicked. This disallows some VPN and proxy
* connections but is a weak form of protection.
*
* @return whether to prevent client proxy connections by checking the IP with Mojang servers
*/
boolean shouldPreventClientProxyConnections();
/**
* Get a Map of all servers registered in <code>velocity.toml</code>. This method does
* <strong>not</strong> return all the servers currently in memory, although in most cases it

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@ -54,6 +54,14 @@ public class VelocityConfiguration extends AnnotatedConfig implements ProxyConfi
@ConfigKey("online-mode")
private boolean onlineMode = true;
@Comment({
"If client's ISP/AS sent from this proxy is different from the one from Mojang's",
"authentication server, the player is kicked. This disallows some VPN and proxy",
"connections but is a weak form of protection."
})
@ConfigKey("prevent-client-proxy-connections")
private boolean preventClientProxyConnections = false;
@Comment({
"Should we forward IP addresses and other data to backend servers?",
"Available options:",
@ -328,6 +336,11 @@ public class VelocityConfiguration extends AnnotatedConfig implements ProxyConfi
return onlineMode;
}
@Override
public boolean shouldPreventClientProxyConnections() {
return preventClientProxyConnections;
}
public PlayerInfoForwarding getPlayerInfoForwardingMode() {
return playerInfoForwardingMode;
}

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@ -50,7 +50,7 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
private static final Logger logger = LogManager.getLogger(LoginSessionHandler.class);
private static final String MOJANG_HASJOINED_URL =
"https://sessionserver.mojang.com/session/minecraft/hasJoined?username=%s&serverId=%s&ip=%s";
"https://sessionserver.mojang.com/session/minecraft/hasJoined?username=%s&serverId=%s";
private final VelocityServer server;
private final MinecraftConnection mcConnection;
@ -96,8 +96,11 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
String playerIp = ((InetSocketAddress) mcConnection.getRemoteAddress()).getHostString();
String url = String.format(MOJANG_HASJOINED_URL,
urlFormParameterEscaper().escape(login.getUsername()), serverId,
urlFormParameterEscaper().escape(playerIp));
urlFormParameterEscaper().escape(login.getUsername()), serverId);
if (server.getConfiguration().shouldPreventClientProxyConnections()) {
url += "&ip=" + urlFormParameterEscaper().escape(playerIp);
}
ListenableFuture<Response> hasJoinedResponse = server.getAsyncHttpClient().prepareGet(url)
.execute();